会员注册 会员登录 主办单位:国家建筑材料工业局技术图书馆 加为收藏 设为主页
1151web_logo
专注建材行业知识大数据
首页 外文期刊 中文期刊 图书馆 建材智网
您所在的位置:首页>>论文报告
Effect of Nanosized TiC0.37N0.63 on Unlubricated Wear Responses of Si3N-Based Nanocomposites Under Low Hertzian Stress
【文件类型】 【消费金额】2.4 【文章页数】8 【会员操作】  
【文章作者】Lee, Alex Chinghuan;Lu, Horng-Hwa;Goto, Takashi;Tu, Rong;Lin, Hua-Tay;Lii, Ding-Fu;Nayak, Pramoda K.;Huang, Jow-Lay
【文章摘要】      Si3N4-based nanocomposites containing 0-50 wt% TiC0.37N0.63 are directly consolidated at 1700 degrees C by spark plasma sintering, and their reciprocal sliding behavior against a Si3N4 counterbody is investigated under a maximum Hertzian stress of 1.27 GPa in unlubricated conditions. The average grain widths of Si3N4 and TiC0.37N0.63 are about 85 and 90 nm, respectively. The decreasing relative densities of the as-sintered nanocomposites indicate that the nano-TiC0.37N0.63 may introduce pores and reduce the hardness and fracture resistance of the materials. The brittleness index for sliding contacts in all the samples is 25-31, indicating brittle fracture taking place on the wear surface and inducing cavities. When the mean free paths of nano-TiC0.37N0.63 are slightly greater than grain length of Si3N4, the best wear resistance is achieved in Si3N4 containing 20/30 wt% TiC0.37N0.63 due to the process of surface smoothing by triboproducts. Severe wear response can be observed in Si3N4 nanocomposites containing 0, 10, 40, and 50 wt% of TiC0.37N0.63. The wear responses are explained by considering the microstructural parameters (like grain characteristics for both phases and mean free path of nano-TiC0.37N0.63) and contact-induced fracturing behavior, as well as tribochemical reactions.
【关 键 字】
【卷】99 【ISSUE】3 【ISSUEID】815B0005     【文章期份】2016    【发布日期】2016/8/11 17:03:30    点击率:0    打印    关闭
关于我们 公告信息 业务资费 广告合同 友情链接 购买阅读卡 在线订《水泥》
网络市场部:010-65761182 网络技术部:010-51164639  传真:010-65761182 Email:service@chinabmi.com
在线咨询:  
国家建筑材料工业局技术图书馆 京ICP备06011358号   京公网安备11010502024146